A webhook is an HTTP callback-based real-time event notification mechanism that lets a service push data to a designated URL when an event occurs, a core technology for real-time data sync and workflow automation.
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Fathom Analytics is a privacy-first website analytics tool founded in Canada in 2018, tracking traffic without cookies with a script of only about 2KB and native GDPR compliance, while offering event-tracking APIs and webhooks for engineering integration, with subscriptions starting at about $14/month.
Postmark was founded in 2009 and is headquartered in Philadelphia, USA. It is a high-deliverability transactional email platform with 99% of emails delivered within 30 seconds, strictly for transactional scenarios such as password resets and order confirmations.
Google Chat is the team collaboration and messaging platform in Google Workspace, with rich Bot automation, Webhook notifications, and Apps Script extensions, an efficient tool for workflow automation and message-driven operations.
TriggerSmart is a triggered marketing automation platform headquartered in the United States, centered on event-driven and trigger-based automation, helping SMBs achieve precise outreach and automated operations through flexible trigger rules and an open technical architecture.
SMTP2GO is a New Zealand-based email delivery platform founded in 2012, offering SMTP relay and REST API. Free tier includes 1,000 emails/month, email logs, webhooks, and sending analytics — ideal for small teams and developers.
SendCloud is a Netherlands-based email delivery platform founded in 2014, specializing in SMTP/API email sending for ecommerce and SaaS businesses with automation and deliverability optimization.
MailPace is a US-based email delivery service founded in 2020, specializing in transactional email tracking and deliverability optimization with SMTP/API dual-channel access and real-time tracking capabilities.
Maileroo is an Australia-based email delivery service founded in 2020, offering a simple API and SMTP interface designed for developers, with low cost and developer-friendly pricing for startups and small teams.
Zoho Flow is Zoho's integration and automation platform launched in Chennai, India in 2018, deeply integrated with 50+ Zoho apps and 600+ third-party connectors for 0-code cross-app automation.
Stamplay is an API integration and workflow automation platform headquartered in the United States, connecting SaaS apps visually and automating business processes, later acquired by mParticle and folded into its customer data platform ecosystem.
Huginn was open-sourced in 2014 as a Ruby-based self-hosted automation agent system with 50+ built-in agent types, giving users full data control for privacy-conscious technical users.
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5 results shownStripe Integration Tutorial: From Registration to First Payment
Stripe is one of the most popular online payment platforms. This tutorial covers registration, configuration, payment page integration, and Webhook setup.
Complete Stripe Payment Integration Guide: from basic checkout to subscription management
Stripe is the world's most popular online payment platform. Complete guide from account setup, API integration to subscription management and webhook handling.
What Happens Behind an Online Payment: The Full Flow of Ordering, Paying, Webhooks, and Reconciliation
When a user clicks "pay", a chain of actions happens in seconds: ordering, creating a payment session, redirect payment, callback verification, reconciliation, refunds, and disputes. This guide breaks down the standard flow so you can understand dropped orders, double charges, and mismatched books.
Webhook Integration and Reliability: Signature Verification, Retries and Idempotency
A webhook integration guide based on webhooks.fyi plus the official Stripe and GitHub documentation, covering event models, signature verification, automatic retries, idempotent deduplication, and security best practices.
Webhook Signature Verification Example
Node.js example for verifying callback request signatures to prevent forgery